kw6 The KEF KC62 has "two 6.5 inch force cancelling drive units powered by 1,000W RMS of specially designed Class D amplification"--so not even 8 inch.
As to your questions about things I can hear, yes in spades to all but that was before the sub was added. Of course the sub made the bass drum in a drum kit sound deeper and more three dimensional. In fact, one of the surprising side effects of a well integrated sub, is, as abd1 mentioned, to add depth to the soundstage. And I certainly hear that despite using only one sub. Although I don't hear the muddiness that dspringham did, I thought about running the output signal through the crossover in the sub to eliminate the amp sending low frequency info to the speakers as strongly recommended by Srajan--which in theory would be cleaner, eliminating overlap. But I'm pretty sure you have to have two subs to maintain the stereo effect to do that.
As to your questions about things I can hear, yes in spades to all but that was before the sub was added. Of course the sub made the bass drum in a drum kit sound deeper and more three dimensional. In fact, one of the surprising side effects of a well integrated sub, is, as abd1 mentioned, to add depth to the soundstage. And I certainly hear that despite using only one sub. Although I don't hear the muddiness that dspringham did, I thought about running the output signal through the crossover in the sub to eliminate the amp sending low frequency info to the speakers as strongly recommended by Srajan--which in theory would be cleaner, eliminating overlap. But I'm pretty sure you have to have two subs to maintain the stereo effect to do that.